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diff --git a/Linear_Integrated_Circuits_by_J._B._Gupta/chapter03_2.ipynb b/Linear_Integrated_Circuits_by_J._B._Gupta/chapter03_2.ipynb new file mode 100755 index 00000000..06ace2b9 --- /dev/null +++ b/Linear_Integrated_Circuits_by_J._B._Gupta/chapter03_2.ipynb @@ -0,0 +1,786 @@ +{ + "metadata": { + "name": "" + }, + "nbformat": 3, + "nbformat_minor": 0, + "worksheets": [ + { + "cells": [ + { + "cell_type": "heading", + "level": 1, + "metadata": {}, + "source": [ + "Chapter-3 : Negative Feedback In Op-Amps" + ] + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Example : 3.1 - Page No 104" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "# Given data\n", + "Af= 10 # voltage gain\n", + "R1= 3 # in \u03a9\n", + "Rf= (Af-1)*R1 # From Af= 1+Rf/R1\n", + "print \"The value of R1 = %d \u03a9\" %R1\n", + "print \"The value of Rf = %d \u03a9\" %Rf" + ], + "language": "python", + "metadata": {}, + "outputs": [ + { + "output_type": "stream", + "stream": "stdout", + "text": [ + "The value of R1 = 3 \u03a9\n", + "The value of Rf = 27 \u03a9\n" + ] + } + ], + "prompt_number": 2 + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Example : 3.2 - Page No 104" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "# Given data\n", + "R1= 2 # in k\u03a9\n", + "Rf_min= 0 \n", + "Rf_max= 100 # in k\u03a9\n", + "# Formula Used : Af= 1+Rf/R1\n", + "Af_max= 1+Rf_max/R1 # maximum closed loop voltage gain\n", + "Af_min= 1+Rf_min/R1 # minimum closed loop voltage gain\n", + "print \"The maximum closed loop voltage gain = %d\" %Af_max\n", + "print \"The minimum closed loop voltage gain = %d\" %Af_min" + ], + "language": "python", + "metadata": {}, + "outputs": [ + { + "output_type": "stream", + "stream": "stdout", + "text": [ + "The maximum closed loop voltage gain = 51\n", + "The minimum closed loop voltage gain = 1\n" + ] + } + ], + "prompt_number": 3 + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Example : 3.3 - Page No 105" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "from __future__ import division\n", + "# Given data\n", + "R1= 100 # in \u03a9\n", + "Rf= 100*10**3 # in \u03a9\n", + "A= 2*10**5 #unit less\n", + "Rin= 2*10**6 # in \u03a9\n", + "Rout= 75 # in \u03a9\n", + "f0= 5 # in Hz\n", + "B= R1/(R1+Rf) # feedback fraction\n", + "AB= A*B # feedback factor\n", + "Af= 1+Rf/R1 # voltage gain\n", + "Rin_f= Rin*(1+AB) # input resistance in \u03a9\n", + "Rout_f= Rout/(1+AB) # output resistance in \u03a9\n", + "f_f= f0*(1+AB) # bandwidth in Hz\n", + "Rin_f= Rin_f*10**-6 # in M\u03a9\n", + "print \"The voltage gain is = %d\" %Af\n", + "print \"The input resistance = %0.1f M\u03a9\" %Rin_f\n", + "print \"The output resistance = %0.4f \u03a9\" %Rout_f\n", + "print \"The bandwidth = %0.f Hz\" %f_f" + ], + "language": "python", + "metadata": {}, + "outputs": [ + { + "output_type": "stream", + "stream": "stdout", + "text": [ + "The voltage gain is = 1001\n", + "The input resistance = 401.6 M\u03a9\n", + "The output resistance = 0.3735 \u03a9\n", + "The bandwidth = 1004 Hz\n" + ] + } + ], + "prompt_number": 5 + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Example : 3.4 - Page No 105" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "#given data\n", + "R1=1 # in k ohm\n", + "R1=R1*10**3 # in ohm\n", + "R_f=10 # in k ohm\n", + "R_f=R_f*10**3 # in ohm\n", + "A=200000 \n", + "OutputVoltageSwing= 13 # in volt\n", + "SupplyVoltage=15 # in volt\n", + "Ri= 2 # in M ohm\n", + "Ri=Ri*10**6 # in ohm\n", + "Ro= 75 # in ohm\n", + "fo= 5 # in Hz\n", + "B= R1/(R1+R_f) \n", + "AB = A*B \n", + "R_outf= Ro/(1+A*B) # in ohm\n", + "R_outf= R_outf*10**3 # in m ohm\n", + "print \"Output Resistance = %0.3f m ohm\" %R_outf\n", + "V_ooT= OutputVoltageSwing/(1+A*B) # in volt\n", + "V_ooT= V_ooT*10**3 # in mV\n", + "print \"Output offset voltage = \u00b1 %0.3f mV\" %V_ooT\n" + ], + "language": "python", + "metadata": {}, + "outputs": [ + { + "output_type": "stream", + "stream": "stdout", + "text": [ + "Output Resistance = 4.125 m ohm\n", + "Output offset voltage = \u00b1 0.715 mV\n" + ] + } + ], + "prompt_number": 9 + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Example : 3.5 - Page No 105" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "# Given data\n", + "Rin= 2*10**6 # in \u03a9\n", + "Rout= 75 # in \u03a9\n", + "f0= 5 # in Hz\n", + "A= 2*10**5 #unit less\n", + "B=1 # for voltage follower\n", + "Rf= 0 \n", + "Af= 1 # voltage gain (since Rf=0)\n", + "Rin_f= A*Rin # input resistance in \u03a9\n", + "Rin_f= Rin_f*10**-9 # in G\u03a9\n", + "Rout_f= Rout/A #output resistance in \u03a9\n", + "f_f= f0*A # bandwidth in Hz\n", + "f_f= f_f*10**-6 # in MHz\n", + "print \"The voltage gain = %d\" %Af \n", + "print \"The input resistance = %0.f G\u03a9\" %Rin_f\n", + "print \"The output resistance = %0.6f \u03a9\" %Rout_f\n", + "print \"The bandwidth = %0.f MHz\" %f_f" + ], + "language": "python", + "metadata": {}, + "outputs": [ + { + "output_type": "stream", + "stream": "stdout", + "text": [ + "The voltage gain = 1\n", + "The input resistance = 400 G\u03a9\n", + "The output resistance = 0.000375 \u03a9\n", + "The bandwidth = 1 MHz\n" + ] + } + ], + "prompt_number": 6 + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Example 3.6 - Page No 109" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "# Given data\n", + "Rin= 2*10**6 # in \u03a9\n", + "Rout= 75 # in \u03a9\n", + "f0= 5 # in Hz\n", + "R1= 330 #in \u03a9\n", + "Rf= 3.3*10**3 # in \u03a9\n", + "A= 2*10**5 #unit less\n", + "B= R1/(R1+Rf) # feedback fraction\n", + "AB= A*B # feedback factor\n", + "Af= -Rf/R1 # colsed-loop voltage gain\n", + "Rin_f= R1 # input resistance with feedback in \u03a9\n", + "Rout_f=Rout/(1+AB) # output resistance with feedback in \u03a9\n", + "f_f= f0*(1+AB) # closed-loop bandwidth in Hz\n", + "f_f= f_f*10**-3 # in kHz\n", + "print \"The closed-loop voltage gain = %0.f\" %Af \n", + "print \"The input resistance = %0.f \u03a9\" %Rin_f\n", + "print \"The output resistance = %0.5f \u03a9\" %Rout_f\n", + "print \"The bandwidth = %0.2f kHz\" %f_f" + ], + "language": "python", + "metadata": {}, + "outputs": [ + { + "output_type": "stream", + "stream": "stdout", + "text": [ + "The closed-loop voltage gain = -10\n", + "The input resistance = 330 \u03a9\n", + "The output resistance = 0.00412 \u03a9\n", + "The bandwidth = 90.91 kHz\n" + ] + } + ], + "prompt_number": 12 + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Example : 3.7 - Page No 109" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "# Given data\n", + "Rin= 2*10**6 # in \u03a9\n", + "Rout= 75 # in \u03a9\n", + "f0= 5 # in Hz\n", + "A= 2*10**5 #unit less\n", + "B= 1/2 # feedback fraction (since R1=Rf)\n", + "Af= -1 # voltage gain\n", + "R1= 330 #in \u03a9 (assume)\n", + "Rin_f= R1 # input resistance with feedback in \u03a9\n", + "Rout_f= Rout/(A/2) # output resistance in \u03a9\n", + "f_f= A/2*f0 # in Hz\n", + "f_f= f_f*10**-6 # in MHz\n", + "print \"The closed-loop voltage gain = %0.f\" %Af\n", + "print \"The input resistance = %0.f \u03a9\" %Rin_f\n", + "print \"The output resistance = %0.5f \u03a9\" %Rout_f\n", + "print \"The bandwidth = %0.1f MHz\" %f_f" + ], + "language": "python", + "metadata": {}, + "outputs": [ + { + "output_type": "stream", + "stream": "stdout", + "text": [ + "The closed-loop voltage gain = -1\n", + "The input resistance = 330 \u03a9\n", + "The output resistance = 0.00075 \u03a9\n", + "The bandwidth = 0.5 MHz\n" + ] + } + ], + "prompt_number": 14 + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Example : 3.8 - Page No 109" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "# Given data\n", + "Rin= 2*10**6 # in \u03a9\n", + "Rout= 75 # in \u03a9\n", + "f0= 5 # in Hz\n", + "A= 200000 #unit less\n", + "VCC= 15 # in V\n", + "VEE= -15 # in V\n", + "Vout_swing= 13 # in V\n", + "# Part (i) : Non-inverting Amplifier\n", + "R1= 1*10**3 # in \u03a9\n", + "Rf= 10*10**3 #in \u03a9\n", + "B= R1/(R1+Rf) # feedback fraction\n", + "AB= A*B # feedback factor\n", + "Af= 1+Rf/R1 # voltage gain\n", + "Rin_f= Rin*(1+AB) # input resistance in \u03a9\n", + "Rin_f=Rin_f*10**-9 # in G\u03a9\n", + "Rout_f= Rout/(1+AB) # output resistance in \u03a9\n", + "f_f= f0*(1+AB) # bandwidth in Hz\n", + "f_f=f_f*10**-3 # in kHz\n", + "VooT= Vout_swing/(1+AB) #in V\n", + "VooT= VooT*10**3 # in mV\n", + "print \"Part (i) : Non-inverting Amplifier :- \" \n", + "print \"The closed-loop voltage gain = %0.f \" %Af\n", + "print \"The input resistance = %0.4f G\u03a9\" %Rin_f\n", + "print \"The output resistance = %0.5f \u03a9\" %Rout_f\n", + "print \"The bandwidth = %0.2f kHz\" %f_f\n", + "print \"The output offset voltage with feedback = \u00b1 %0.3f mV\" %VooT\n", + "\n", + "# Part (ii) : Inverting Amplifier\n", + "R1= 470 # in \u03a9\n", + "Rf= 4.7*10**3 #in \u03a9\n", + "B= R1/(R1+Rf) # feedback fraction\n", + "AB= A*B # feedback factor\n", + "Af= -Rf/R1 # voltage gain\n", + "Rin_f= R1 # input resistance in \u03a9\n", + "Rout_f= Rout/(1+AB) # output resistance in \u03a9\n", + "f_f= f0*(1+AB) # bandwidth in Hz\n", + "f_f=f_f*10**-3 # in kHz\n", + "VooT= Vout_swing/(1+AB) #in V\n", + "VooT= VooT*10**3 # in mV\n", + "print \"\\nPart (ii) : Inverting Amplifier :- \" \n", + "print \"The closed-loop voltage gain = %0.f \" %Af\n", + "print \"The input resistance = %0.f \u03a9\" %Rin_f\n", + "print \"The output resistance = %0.5f \u03a9\" %Rout_f\n", + "print \"The bandwidth = %0.2f kHz\" %f_f\n", + "print \"The output offset voltage with feedback = \u00b1 %0.3f mV\" %VooT" + ], + "language": "python", + "metadata": {}, + "outputs": [ + { + "output_type": "stream", + "stream": "stdout", + "text": [ + "Part (i) : Non-inverting Amplifier :- \n", + "The closed-loop voltage gain = 11 \n", + "The input resistance = 36.3656 G\u03a9\n", + "The output resistance = 0.00412 \u03a9\n", + "The bandwidth = 90.91 kHz\n", + "The output offset voltage with feedback = \u00b1 0.715 mV\n", + "\n", + "Part (ii) : Inverting Amplifier :- \n", + "The closed-loop voltage gain = -10 \n", + "The input resistance = 470 \u03a9\n", + "The output resistance = 0.00412 \u03a9\n", + "The bandwidth = 90.91 kHz\n", + "The output offset voltage with feedback = \u00b1 0.715 mV\n" + ] + } + ], + "prompt_number": 15 + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Example : 3.9 - Page No 110" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "# Given data\n", + "Rf= 500*10**3 # in \u03a9\n", + "R1= 5*10**3 #in \u03a9\n", + "Vin= 0.1 # input voltage in V\n", + "Af= -Rf/R1 # voltage gain\n", + "Rin= R1 # input resistance in \u03a9\n", + "Rin= Rin*10**-3 # in k\u03a9\n", + "Rout= 0 # in \u03a9\n", + "Vout= Af*Vin # output voltage in V\n", + "I_in= Vin/R1 # input current in A\n", + "I_in= I_in*10**3 # in mA\n", + "print \"The amplifier circuit voltage gain = %0.f\" %Af\n", + "print \"The amplifier circuit input resistance = %0.f k\u03a9\" %Rin\n", + "print \"The amplifier circuit output resistance %0.f \u03a9\" %Rout\n", + "print \"The output voltage = %0.f V\" %Vout\n", + "print \"The input current = %0.2f mA\" %I_in" + ], + "language": "python", + "metadata": {}, + "outputs": [ + { + "output_type": "stream", + "stream": "stdout", + "text": [ + "The amplifier circuit voltage gain = -100\n", + "The amplifier circuit input resistance = 5 k\u03a9\n", + "The amplifier circuit output resistance 0 \u03a9\n", + "The output voltage = -10 V\n", + "The input current = 0.02 mA\n" + ] + } + ], + "prompt_number": 16 + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Example : 3.10 - Page No 110" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "# Given data\n", + "Rf= 1*10**6 # in \u03a9\n", + "Rin= 1*10**6 # in \u03a9\n", + "Vout_by_Vin= -Rf/Rin # (since Vout= -Rf/Rin*Vin)\n", + "Av= Vout_by_Vin # voltage gain\n", + "print \"The voltage gain = %0.f\" %Av\n", + "# I_in= Iout (As it is a unity gain inverter)\n", + "Ain= 1 #input impedance (since I_in= Iout)\n", + "print \"The input impedance = %0.f\" %Ain\n", + "Ap= abs(Av*Ain) # power gain\n", + "print \"The power gain = %0.f\" %Ap" + ], + "language": "python", + "metadata": {}, + "outputs": [ + { + "output_type": "stream", + "stream": "stdout", + "text": [ + "The voltage gain = -1\n", + "The input impedance = 1\n", + "The power gain = 1\n" + ] + } + ], + "prompt_number": 17 + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Example : 3.11 - Page No 111" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "# Given data\n", + "Av= -30 # voltage gain\n", + "Rf= 1*10**6 # in \u03a9\n", + "#Since, Av= Vo/Vi=-Rf/R1, so\n", + "R1= -Rf/Av # in \u03a9\n", + "R1= R1*10**-3 # in k\u03a9\n", + "Rf= Rf*10**-6 # in M\u03a9\n", + "print \"The value of Rf = %0.f M\u03a9\" %Rf\n", + "print \"The value of R1 = %0.f k\u03a9\" %R1" + ], + "language": "python", + "metadata": {}, + "outputs": [ + { + "output_type": "stream", + "stream": "stdout", + "text": [ + "The value of Rf = 1 M\u03a9\n", + "The value of R1 = 33 k\u03a9\n" + ] + } + ], + "prompt_number": 19 + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Example : 3.12 - Page No 111" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "# Given data\n", + "Av= -8 # voltage gain\n", + "Vi= 1 # input voltage in V\n", + "I1= 15 #maximum current in \u00b5A\n", + "I1= I1*10**-6 # in A\n", + "R1= Vi/I1 # in \u03a9\n", + "R1= R1*10**-3 # in k\u03a9\n", + "print \"The value of R1 = %0.2f k\u03a9 (Standard value 68 k\u03a9)\" %R1\n", + "R1= 68 # in k\u03a9\n", + "Rf= -Av*R1 # in k\u03a9\n", + "print \"The value of Rf = %0.f k\u03a9\" %Rf" + ], + "language": "python", + "metadata": {}, + "outputs": [ + { + "output_type": "stream", + "stream": "stdout", + "text": [ + "The value of R1 = 66.67 k\u03a9 (Standard value 68 k\u03a9)\n", + "The value of Rf = 544 k\u03a9\n" + ] + } + ], + "prompt_number": 20 + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Example : 3.15 - Page No 114" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "from __future__ import division\n", + "# Given data\n", + "Rf= 20*10**3 # in \u03a9\n", + "R1= 10*10**3 # in \u03a9\n", + "\n", + "#Part (i) When switch S is off,\n", + "Aoff_non_inv= 1+Rf/R1 # non-inverting amplifier circuit gain\n", + "Aoff_inv= -Rf/R1 # inverting amplifier gain\n", + "Aoff= Aoff_non_inv+Aoff_inv # amplifier circuit gain\n", + "print \"Part (i) : When switch S is off, the gain of the amplifier circuit = %0.f\" %Aoff\n", + "\n", + "# Part (ii) When switch S is on,\n", + "Aon= -Rf/R1 # amplifier circuit gain\n", + "print \"Part (ii) : When switch S is on, the gain of the amplifer circuit = %0.f\" %Aon" + ], + "language": "python", + "metadata": {}, + "outputs": [ + { + "output_type": "stream", + "stream": "stdout", + "text": [ + "Part (i) : When switch S is off, the gain of the amplifier circuit = 1\n", + "Part (ii) : When switch S is on, the gain of the amplifer circuit = -2\n" + ] + } + ], + "prompt_number": 21 + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Example : 3.18 - Page No 116" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "# Given data\n", + "R1= 1*10**3 # in \u03a9\n", + "R2= 1*10**3 # in \u03a9\n", + "Rf= 10*10**3 # in \u03a9\n", + "R3= 10*10**3 # in \u03a9\n", + "Vd= 5 # in mV\n", + "Vcm= 2 # in mV\n", + "CMRR_dB= 90 # in dB\n", + "CMRR= 10**(CMRR_dB/20) \n", + "Ad= Rf/R1 # differential voltage gain\n", + "# Part (i)\n", + "Vout= Ad*Vd # output voltage in mV\n", + "print \"Part (i) : The output voltage = %0.f mV\" %Vout\n", + "# Part (ii)\n", + "Acm= Ad/CMRR # common mode gain\n", + "AcmVcm= Acm*Vcm # magnitude of the induced 60Hz noise at the output in mV\n", + "AcmVcm= AcmVcm*10**3 # in \u00b5V\n", + "print \"The magnitude of the induced 60Hz noise at the output = %0.3f \u00b5V\" %AcmVcm" + ], + "language": "python", + "metadata": {}, + "outputs": [ + { + "output_type": "stream", + "stream": "stdout", + "text": [ + "Part (i) : The output voltage = 50 mV\n", + "The magnitude of the induced 60Hz noise at the output = 0.632 \u00b5V\n" + ] + } + ], + "prompt_number": 22 + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Example : 3.19 - Page No 117" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "# Given data\n", + "R1= 540 # in \u03a9\n", + "R3= 540 # in \u03a9\n", + "R2= 5.4*10**3 # in \u03a9\n", + "Rf= 5.4*10**3 # in \u03a9\n", + "Vin1= -2.5 # in V\n", + "Vin2= -3.5 #in V\n", + "Rin= 2*10**6 #input impedance in \u03a9\n", + "A= 2*10**5 # open loop voltage gain\n", + "Ad= (1+Rf/R1) # voltage gain\n", + "print \"The voltage gain = %0.f\" %Ad\n", + "Vout=Ad*(Vin1-Vin2) # output voltage in V\n", + "print \"The output voltage = %0.f V\" %Vout\n", + "Rin_f1= Rin*(1+A*R1/(R1+Rf)) # in \u03a9\n", + "Rin_f2= Rin*(1+A*R2/(R1+Rf)) # in \u03a9\n", + "print \"The value of Rin_f1 = %0.3e \u03a9\" %Rin_f1\n", + "print \"The value of Rin_f2 = %0.3e \u03a9\" %Rin_f2" + ], + "language": "python", + "metadata": {}, + "outputs": [ + { + "output_type": "stream", + "stream": "stdout", + "text": [ + "The voltage gain = 11\n", + "The output voltage = 11 V\n", + "The value of Rin_f1 = 3.637e+10 \u03a9\n", + "The value of Rin_f2 = 3.636e+11 \u03a9\n" + ] + } + ], + "prompt_number": 1 + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Example : 3.20 - Page No 120" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "# Given data\n", + "Vin= 100*10**-3 # in V\n", + "Vout= 4.25 # in V\n", + "R1= 100 # in \u03a9\n", + "# Formula Used : Vout= (1+2*Rf/Rf)*Vin\n", + "Rf= (Vout/Vin-1)*R1/2 # in \u03a9\n", + "Rf= Rf*10**-3 # in k\u03a9\n", + "print \"The value of R1 = %0.f \u03a9\" %R1\n", + "print \"The value of Rf = %0.1f k\u03a9 (Standard value 2.2 k\u03a9)\" %Rf" + ], + "language": "python", + "metadata": {}, + "outputs": [ + { + "output_type": "stream", + "stream": "stdout", + "text": [ + "The value of R1 = 100 \u03a9\n", + "The value of Rf = 2.1 k\u03a9 (Standard value 2.2 k\u03a9)\n" + ] + } + ], + "prompt_number": 24 + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Example : 3.21- Page No 121" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "# Given data\n", + "R1= 3.3 # in k\u03a9\n", + "R2= 3.3 # in k\u03a9\n", + "R3= 1.2 # in k\u03a9\n", + "R4= 1.2 # in k\u03a9\n", + "Rf= 3.9 # in k\u03a9\n", + "R5= 3.9 # in k\u03a9\n", + "Rp= 2.5 # in k\u03a9\n", + "A= 2*10**5 # unit less\n", + "f0= 5 # in Hz\n", + "Rin= 2*10**6 # in \u03a9\n", + "Rout= 75 # in \u03a9\n", + "Ad= -(1+2*R1/Rp)*Rf/R3 # voltage gain\n", + "print \"The voltage gain = %0.2f\" %Ad\n", + "Rinf= Rin*(1+A*(R1+Rp)/(2*R1+Rp)) #input resistance in \u03a9\n", + "Rinf= Rinf*10**-9 # in G\u03a9\n", + "print \"The input resistance = %0.3f G\u03a9\" %Rinf\n", + "Routf= Rout/abs(1+A/Ad) # output resistance in \u03a9\n", + "print \"The output resistance = %0.6f \u03a9\" %Routf\n", + "f_f= A*f0/abs(Ad) # bandwidth in Hz\n", + "f_f= f_f*10**-3 # in kHz\n", + "print \"The bandwidth = %0.2f kHz\" %f_f" + ], + "language": "python", + "metadata": {}, + "outputs": [ + { + "output_type": "stream", + "stream": "stdout", + "text": [ + "The voltage gain = -11.83\n", + "The input resistance = 254.947 G\u03a9\n", + "The output resistance = 0.004437 \u03a9\n", + "The bandwidth = 84.53 kHz\n" + ] + } + ], + "prompt_number": 25 + } + ], + "metadata": {} + } + ] +}
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